A loading test device suitable for observing microstructure of high-energy propellant material

Abstract

This invention discloses a loading test device suitable for observing the microstructure of high-energy propellant materials. It includes a support frame with symmetrically distributed fixed sleeves slidably connected to it. A movable rod is fixedly connected to each fixed sleeve and slidably connected to the support frame. A motor is mounted on the support frame, and a threaded rod is fixedly connected to the motor's output shaft. The threaded rod has a threaded portion, and the movable rod is threadedly connected to the threaded portion. A first protective sleeve and a second protective sleeve are slidably connected to the symmetrically distributed fixed sleeves. A gas storage tank is mounted on each fixed sleeve, and a piston rod is slidably connected to the gas storage tank. The first and second protective sleeves are fixedly connected to adjacent piston rods. A quick-melting block is provided on each fixed sleeve. This invention rapidly melts the quick-melting block, causing the first and second protective sleeves to move in opposite directions. The first and second protective sleeves cover the propellant charge, preventing the combustion of the propellant charge from spreading fire or causing injury to surrounding personnel.

Description

Technical Field

[0001] This invention relates to the field of solid propellant technology, and in particular to a loading test apparatus suitable for observing the microstructure of high-energy propellant materials. Background Technology

[0002] Solid propellant is a commonly used rocket propellant, whose main components are a mixture of solid fuel and oxidizer. In order to ensure the reliability of solid propellant, it is necessary to conduct loading tests on solid propellant to ensure the safe launch of rocket and the completion of mission. It is an essential test before space launch.

[0003] During loading tests on solid propellants, substandard solid propellant manufacturing or operator error may cause the solid propellant to ignite, leading to the spread of fire, resulting in personnel injury or equipment damage. Furthermore, existing loading equipment uses a single loading method, which results in incomplete loading of the solid propellant and an inability to comprehensively evaluate its performance through different loading methods, thus affecting the accuracy of solid propellant data. Summary of the Invention

[0004] To overcome the problems during solid propellant loading... Ignite Ignite This leads to the spread of fire, and the existing loading equipment has the disadvantage of being limited to a single loading method and unable to fully evaluate the performance of solid propellants. The present invention provides a loading test device suitable for observing the microstructure of high-energy propellant materials.

[0005] The technical solution is as follows: A loading test device suitable for observing the microstructure of high-energy propellant materials, comprising a support frame, symmetrically distributed fixed sleeves slidably connected to the support frame, movable rods fixedly connected to each of the symmetrically distributed fixed sleeves, the movable rods slidably connected to the support frame, a motor mounted on the support frame, a threaded rod fixedly connected to the output shaft of the motor, the threaded rod having symmetrically distributed threaded portions, the movable rods being threadedly connected to adjacent threaded portions, a first protective sleeve and a second protective sleeve slidably connected to the symmetrically distributed fixed sleeves respectively, a gas storage tank mounted on the fixed sleeve, the gas storage tank being filled with compressed gas. The gas storage tank is slidably connected to a piston rod. The first and second protective sleeves are respectively fixed to the adjacent piston rods. The fixed sleeve is provided with a fast-melting block. The first and second protective sleeves are respectively attached to the adjacent fast-melting blocks. The support frame is slidably connected to symmetrically distributed guide rods. A tension spring is fixed between the guide rod and the support frame. A fixed rod is fixed to the guide rod. A fixed clamp is fixed to the fixed rod. An X-ray radiator is installed on the support frame. A first electric push rod is fixed to the fixed sleeve. A compression rod is fixed to the telescopic end of the first electric push rod. The fixed sleeve is provided with a stretching assembly for stretching the propellant column.

[0006] Furthermore, the fixing clamp is equipped with evenly distributed electric rollers for rotating the drug cartridge.

[0007] Furthermore, the fixing rod is fixedly connected to a wedge block, the support frame is slidably connected to a compression plate, a tension spring is fixedly connected between the compression plate and the support frame, the compression plate is fixedly connected to symmetrically distributed baffles, and the first protective sleeve cooperates with the adjacent baffles through a baffle plate.

[0008] Furthermore, the support frame is equipped with a fan to clean impurities adhering to the surface of the medicine column.

[0009] Furthermore, the outer diameter of the first protective sleeve is equal to the inner diameter of the second protective sleeve, so that the first protective sleeve and the second protective sleeve can fit together tightly.

[0010] Furthermore, a second electric push rod is installed on the fixed sleeve, and a first mounting shell and a second mounting shell are slidably connected to the support frame. The inner diameter of the first mounting shell is equal to the outer diameter of the second mounting shell, so that the first mounting shell and the second mounting shell can fit tightly together. The first mounting shell cooperates with the adjacent baffle. The first mounting shell and the second mounting shell are respectively fixedly connected to the telescopic end of the adjacent second electric push rod. The second mounting shell is provided with an air inlet. The first mounting shell is connected to an air inlet pipe. A piston plate is fixedly connected to the extrusion rod. An air pump is fixedly connected to the support frame. The air pump is connected to the air inlet pipe.

[0011] Furthermore, the stretching assembly includes a mounting ring slidably connected to an adjacent fixed sleeve, a spring fixedly connected between the mounting ring and an adjacent extrusion rod, the mounting ring being slidably connected to a first limiting block in a circumferential array and a fixed block in a circumferential array, a spring fixedly connected between the first limiting block and an adjacent fixed block, and a tension spring fixedly connected between the first limiting block and an adjacent mounting ring.

[0012] Furthermore, when the extrusion rod contacts the drug cartridge, the spring between the first limiting block and the adjacent fixing block is in a normal state, while the spring between the extrusion rod and the adjacent mounting ring is in a compressed state.

[0013] Furthermore, the mounting ring is rotatably connected to a rotating sleeve, the extrusion rod is fixedly connected to a slider, the rotating sleeve is provided with a limiting groove that cooperates with the limiting of the adjacent slider, and the rotating sleeve is fixedly connected to a second limiting block in a circumferential array.

[0014] Furthermore, the second limiting block cooperates with the adjacent first limiting block to increase the pressure of the fixed block on the propellant column.

[0015] The present invention has the following advantages: 1. The present invention rapidly melts the quick-melting block when the propellant is burning, causing the first protective sleeve and the second protective sleeve to move in opposite directions. The first protective sleeve and the second protective sleeve cover the propellant, preventing the fire from spreading or causing harm to surrounding personnel, thus improving safety during use.

[0016] 2. This device applies different loading methods to the propellant column, subjecting it to varying loads. These different loads can be combined to conduct further loading tests on the propellant column, enabling operators to further analyze the data and images of the propellant column and improve the accuracy of their judgments.

[0017] 3. By pressing the adjacent first limiting block with the second limiting block, the spring between the fixed block and the first limiting block is compressed, and the friction between the fixed block and the drug column gradually increases, so that the pressing force of the fixed block on the drug column is always at the minimum value, reducing the interference with the tensile test, improving the accuracy of the test data, and avoiding relative sliding between the fixed block and the drug column, which would cause the tensile test of the drug column to fail. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram showing the positional relationship between the first protective sleeve and the first mounting shell, etc., of the present invention;

[0020] Figure 3 This is a schematic diagram showing the positional relationship of the fixing rod and fixing clamp, etc., of the present invention;

[0021] Figure 4 This is a diagram showing the mating relationship between the first mounting shell and the second mounting shell of the present invention.

[0022] Figure 5 This is a three-dimensional structural diagram of the fixing clamp and wedge block and other parts of the present invention;

[0023] Figure 6 This is a schematic diagram showing the positional relationship between the extrusion plate and the first protective sleeve, etc., of the present invention;

[0024] Figure 7 This is a schematic diagram showing the positional relationship of the mounting ring and rotating sleeve, etc., of the present invention;

[0025] Figure 8 This is a schematic diagram showing the positional relationship of the first limiting block and the fixing block, etc., of the present invention;

[0026] Figure 9 For the present invention Figure 8 Enlarged view of the 3D structure at point A;

[0027] Figure 10 This is a three-dimensional structural diagram of the rotating sleeve and the second limiting block of the present invention;

[0028] Figure 11 This is a three-dimensional structural diagram of the first limiting block and fixing block and other parts of the present invention.

[0029] Labels in the diagram: 101-Support frame, 102-Fixing sleeve, 103-Moving rod, 104-Motor, 105-Threaded rod, 106-First protective sleeve, 107-Second protective sleeve, 108-Gas tank, 109-Piston rod, 110-Fast melting block, 111-Guide rod, 112-Fixing rod, 113-Fixing clamp, 114-X-ray radiator, 115-First electric push rod, 116-Extrusion rod, 117- Electric roller, 118-wedge block, 119-extrusion plate, 120-fan, 201-second electric push rod, 202-first mounting shell, 203-second mounting shell, 204-air inlet, 205-air inlet pipe, 206-piston plate, 207-air pump, 301-mounting ring, 302-first limiting block, 303-fixing block, 304-rotating sleeve, 305-slider, 306-limiting groove, 307-second limiting block. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Example 1: A loading test device suitable for observing the microstructure of high-energy propellant materials, such as... Figures 1-7As shown, the device includes a support frame 101, with two symmetrically distributed fixed sleeves 102 slidably connected to the support frame 101. Movable rods 103 are fixedly connected to the lower sides of each of the two symmetrically distributed fixed sleeves 102. The movable rods 103 are slidably connected to the upper side of the support frame 101. A motor 104 is installed on the left side of the upper side of the support frame 101. A threaded rod 105 is threadedly connected between the two symmetrically distributed movable rods 103. The threaded rod 105 is fixedly connected to the output shaft of the motor 104. The threaded rod 105 has two symmetrically distributed threaded portions. The movable rod 103 engages with adjacent threaded portions on the threaded rod 105. A first protective sleeve 106 and a second protective sleeve 107 are slidably connected to the two symmetrically distributed fixed sleeves 102, respectively. The outer diameter of the first protective sleeve 106 is equal to that of the second protective sleeve 107. The inner diameter of the second protective sleeve 107 is used to ensure a tight fit between the first protective sleeve 106 and the second protective sleeve 107. A gas storage tank 108 is installed on the front side of the fixed sleeve 102. The gas storage tank 108 is filled with compressed gas and is slidably connected to a piston rod 109. The first protective sleeve 106 and the second protective sleeve 107 are respectively fixed to adjacent piston rods 109. Quick-melting blocks 110 are provided on opposite sides of the two symmetrically distributed fixed sleeves 102. The quick-melting blocks 110 melt rapidly when exposed to high temperatures. The first protective sleeve 106 and the second protective sleeve 107 are respectively fitted to adjacent quick-melting blocks 110, so that when the quick-melting blocks 110 are not melted, they block the first protective sleeve 106 and the second protective sleeve 107. After the quick-melting blocks 110 melt upon exposure to high temperatures, the first protective sleeve 106 and the second protective sleeve 107 are closed. Under the pressure of the gas inside the gas tank 108, the protective sleeve 106 and the second protective sleeve 107 approach each other, covering the solid propellant and preventing the fire from spreading. The support frame 101 is slidably connected to two symmetrically distributed guide rods 111. A tension spring for resetting the guide rods 111 is fixed between the guide rods 111 and the support frame 101. A fixing rod 112 is fixed to the opposite sides of the two symmetrically distributed guide rods 111. A fixing clamp 113 is fixed to the upper part of the fixing rod 112. An X-ray radiator 114 is installed on the support frame 101, located above the fixing clamp 113. A first electric push rod 115 is fixed to the fixing sleeve 102. A compression rod 116 is fixed to the telescopic end of the first electric push rod 115. The fixing clamp 113 is equipped with evenly distributed... An electric roller 117 drives the solid propellant column to rotate, allowing the X-ray radiator 114 to observe the column more comprehensively. A wedge block 118 is fixedly connected to a fixed rod 112. A pressing plate 119 is slidably connected to the support frame 101. The pressing plate 119 has an inclined surface. When the pressing plate 119 contacts the wedge block 118, the inclined surface of the pressing plate 119 and the wedge block 118 are in a limiting engagement. A tension spring for resetting the pressing plate 119 is fixedly connected between the pressing plate 119 and the support frame 101. Two symmetrically distributed baffles are fixedly connected to the pressing plate 119. A baffle plate is fixedly connected to the lower side of the first protective sleeve 106. The first protective sleeve 106 engages with the adjacent baffle plate through the baffle plate. A fan 120 for removing impurities from the surface of the propellant column is installed on the support frame 101.The retaining sleeve 102 is equipped with a tensioning assembly for tensioning the propellant column.

[0032] like Figures 7-11 As shown, the stretching assembly includes a mounting ring 301, which is slidably connected to an adjacent fixed sleeve 102. A spring for compressing the mounting ring 301 is fixed between the mounting ring 301 and an adjacent extrusion rod 116. The mounting ring 301 is slidably connected to four circumferentially arranged first limiting blocks 302 and four circumferentially arranged fixed blocks 303. The first limiting blocks 302 are close to the center of the adjacent mounting ring 301, and the fixed blocks 303 are far from the center of the adjacent mounting ring 301. A spring for applying pressure to the drug delivery column is fixed between the first limiting block 302 and the adjacent fixed block 303. A tension spring for resetting the first limiting block 302 is fixed between the first limiting block 302 and the adjacent mounting ring 301. When the extrusion rod 116 contacts the drug delivery column, the first limiting block 302 and the adjacent fixed block 303... The springs between 03 are in normal condition, and the spring between the extrusion rod 116 and the adjacent mounting ring 301 is in compressed condition, so that the fixing block 303 does not apply pressure to the propellant. The mounting ring 301 is rotatably connected to the rotating sleeve 304. The upper side of the extrusion rod 116 is fixedly connected to the slider 305. The rotating sleeve 304 is provided with a limiting groove 306, which is composed of a straight groove and an inclined groove. The limiting groove 306 is in a limiting fit with the adjacent slider 305. The rotating sleeve 304 is fixedly connected to four second limiting blocks 307 in a circumferential array. The second limiting blocks 307 are in a limiting fit with the adjacent first limiting blocks 302, which are used to increase the pressure of the fixing block 303 on the propellant and avoid excessive tension on the solid propellant, which would cause the fixing block 303 to slide relative to the solid propellant, resulting in the failure of the tensile test of the solid propellant.

[0033] When using this device to perform a loading test on a solid propellant grain (hereinafter referred to as the grain), the operator pulls the two guide rods 111, causing the tension spring between the guide rods 111 and the support frame 101 to be stretched. The two symmetrically distributed guide rods 111 drive the two fixed clamps 113 to move in opposite directions through the adjacent fixed rods 112. The operator places the grain between the two fixed clamps 113, and then the operator slowly releases the guide rods 111, causing the two symmetrically distributed fixed clamps 113 to move in opposite directions. The two fixed clamps 113 contact the grain and fix it. Then the operator turns on the electric roller 117 and the blower 120. The electric roller 117 drives the grain to rotate, and the blower 120 cleans the impurities on the surface of the grain to prevent impurities from affecting the operator's observation of the grain's structure.

[0034] The operator turns on motor 104, X-ray radiator 114, and two symmetrically distributed first electric push rods 115, and turns off electric roller 117. The output shaft of motor 104 drives threaded rod 105 to rotate, thereby causing two symmetrically distributed movable rods 103 to move in opposite directions. The symmetrically distributed movable rods 103 drive two fixed sleeves 102 and their parts to move in opposite directions. The two symmetrically distributed mounting rings 301 move in opposite directions and approach the propellant. At this time, the side of the mounting ring 301 is on the same plane as the side of the adjacent fixed sleeve 102, and the spring between the extrusion rod 116 and the adjacent mounting ring 301 is in normal condition. The first limit block 302 and the adjacent mounting ring 301 are in the same plane. The tension springs between the rings 301 are in a stretched state, meaning the fixing block 303 extends from the adjacent mounting ring 301. The fixing block 303 blocks the movement of the adjacent extrusion rod 116 and the pill. The telescopic end of the first electric push rod 115 drives the extrusion rod 116 closer to the pill, compressing the spring between the extrusion rod 116 and the adjacent mounting ring 301. The extrusion rod 116 drives the adjacent slider 305 to move, and the slider 305 presses against the adjacent limiting groove 306, thereby causing the adjacent rotating sleeve 304 to rotate. The rotating sleeve 304 drives the four second limiting blocks 307 in the circumferential array to rotate, thereby causing the adjacent first limiting block 302 to reset under the tension of its upper tension spring. The first limiting block 302, driven by a spring, moves the adjacent fixing block 303 away from the center of the mounting ring 301. When the slider 305 enters the straight groove of the limiting groove 306, the arc-shaped surface of the fixing block 303 connects with the arc-shaped surface of the mounting ring 301. The slider 305 no longer presses against the limiting groove 306, the rotating sleeve 304 no longer rotates, and the fixing block 303 no longer obstructs the medicine column and the adjacent extrusion rod 116. As the extrusion rod 116 gradually approaches the end face of the medicine column, the spring between the extrusion rod 116 and the adjacent mounting ring 301 is continuously compressed. When the extrusion rod 116 contacts the end face of the medicine column, the operator turns off the motor 104. At this time, the fixing block 303 is in contact with the medicine column. Two symmetrically distributed extrusion rods 116 press the two ends of the drug column, subjecting it to pressure from both ends. When the drug column is subjected to pressure for a set time, the operator controls the extension end of the first electric push rod 115 to move the extrusion rods 116 away from the drug column, thus relieving the drug column of extrusion pressure and ensuring that the slider 305 remains within the straight groove of the adjacent limiting groove 306. The operator then activates the electric roller 117, which rotates the drug column. The X-ray radiator 114 displays an image of the internal structure of the drug column on a monitor, allowing the operator to observe the fine structure of the drug column and analyze its internal structure.

[0035] When the operator needs to perform a tensile loading test on the drug column, the operator repeats the actions described above before the extrusion rod 116 contacts the drug column. When the extrusion rod 116 contacts the drug column, the fixing block 303 adheres to the drug column. The operator controls the first electric push rod 115 to move the extrusion rod 116 away from the drug column, causing the slider 305 to enter the inclined groove of the adjacent limiting groove 306. The slider 305 drives the rotating sleeve 304 to rotate in the opposite direction through the limiting groove 306. The rotating sleeve 304 drives the adjacent second limiting block 307 to rotate in the opposite direction, thereby causing the second limiting block 307 to press the adjacent first limiting block 302. The first limiting block 302 moves toward the adjacent fixing block 303. 2. The tension spring between the compression rod 116 and the adjacent mounting ring 301 is stretched, and the spring between the first limiting block 302 and the adjacent fixing block 303 is compressed, thereby causing the fixing block 303 to squeeze the medication. As the compression rod 116 moves to the right and the second limiting block 307 rotates in the opposite direction, the compression of the spring between the fixing block 303 and the first limiting block 302 increases. Since the spring between the compression rod 116 and the adjacent mounting ring 301 is in a compressed state at this time, the compression rod 116 does not drive the adjacent mounting ring 301 to move. As the compression rod 116 moves away from the medication, the compression of the spring between the compression rod 116 and the adjacent mounting ring 301 gradually decreases. When the compression rod 116 and the adjacent mounting ring 301... After the spring returns to its normal state, the extrusion rod 116 applies tension to the mounting ring 301 via the spring. Since the fixing block 303 is compressing the pill at this time, the friction between the fixing block 303 and the pill increases. This friction is greater than the tension applied by the extrusion rod 116 to the mounting ring 301 via the spring, so the mounting ring 301 cannot move. Furthermore, as the extrusion rod 116 continues to move, the rotating sleeve 304 continues to rotate, continuously compressing the spring between the fixing block 303 and the adjacent first limiting block 302. The pressure applied by the fixing block 303 to the pill gradually increases, preventing the extrusion rod 116 from increasing its tension on the pill, which could cause the fixing block 303 to... 03. Relative sliding with the propellant column causes inaccurate tension on the propellant column and may even ignite it, leading to test failure. When the propellant column is subjected to tension for the time set by the operator, the operator controls the telescopic end of the first electric push rod 115 to drive the extrusion rod 116 closer to the propellant column, so that the propellant column is no longer subjected to tension. When the slider 305 enters the straight groove of the adjacent limiting groove 306, the fixing block 303 stops extruding the propellant column. The operator turns on the electric roller 117, which drives the propellant column to rotate. The X-ray radiator 114 feeds back the image of the internal structure of the propellant column to the operator through the display, and the operator analyzes the internal structure of the propellant column through the image.

[0036] During the loading of the propellant charge, operator error may occur, causing the propellant charge to ignite instantaneously. When the propellant charge ignites, the instantaneous heat generated rapidly melts the two quick-melting blocks 110, freeing the first protective sleeve 106 and the second protective sleeve 107 from obstruction by the adjacent quick-melting blocks 110. At this time, under the pressure of the gas in the gas storage tank 108, the compressed gas squeezes the adjacent piston rods 109, causing the two piston rods 109 to drive the first protective sleeve 106 and the second protective sleeve 107 to move in opposite directions. The first protective sleeve 106 then drives the adjacent... The baffle moves to the left, and the baffle on the first protective sleeve 106 contacts the baffle on the extrusion plate 119, causing the baffle to drive the baffle and extrusion plate 119 to move to the left. The extrusion plate 119 extrudes the two wedge blocks 118, thereby causing the two symmetrically distributed guide rods 111 to move in opposite directions. The tension spring between the guide rods 111 and the support frame 101 is stretched, and the two fixing clips 113 move in opposite directions and lose contact with the drug cartridge. The fixing clips 113 disengage from the movement path of the first protective sleeve 106 and the second protective sleeve 107, preventing the first protective sleeve 106 and the second protective sleeve 107 from moving. When the two sleeves 102 approach each other, they are blocked by the fixing clip 113. The first protective sleeve 106 extends into the second protective sleeve 107. The first protective sleeve 106 and the second protective sleeve 107 cover the propellant column, preventing the propellant column from burning and damaging the X-ray radiator 114 and causing harm to the operator. When the fast-melting block 110 melts, the first electric push rod 115 is activated. The first electric push rod 115 quickly drives the extrusion rod 116 into the adjacent mounting ring 301. The extrusion rod 116 and the adjacent mounting ring 301 cooperate to seal the opposite sides of the two fixing sleeves 102. To prevent flame damage to parts, after the loading test of the propellant column is completed, the operator turns off the first electric push rod 115, the X-ray radiator 114 and the fan 120, and resets the first protective sleeve 106 and the second protective sleeve 107. At this time, the extrusion plate 119 is reset, so that the two fixing clamps 113 clamp and fix the propellant column. The operator installs the new quick-melting block 110 onto the two fixing sleeves 102. Then the operator turns on the motor 104 to move the two mounting rings 301 away from the propellant column. The operator then removes the propellant column from the two fixing clamps 113.

[0037] Example 2: Based on Example 1, such as Figures 2-4 and Figure 7As shown, a second electric push rod 201 is mounted on the upper part of the fixed sleeve 102. A first mounting shell 202 and a second mounting shell 203 are slidably connected to the support frame 101. The inner diameter of the first mounting shell 202 is equal to the outer diameter of the second mounting shell 203, allowing the first mounting shell 202 and the second mounting shell 203 to fit tightly together. The first mounting shell 202 fits against the adjacent first protective sleeve 106, and the second mounting shell 203 fits against the adjacent second protective sleeve 107. The first mounting shell 202 cooperates with an adjacent baffle. The housing 203 is fixedly connected to the telescopic end of the adjacent second electric push rod 201. The front side of the second mounting housing 203 is provided with an air inlet 204. The first mounting housing 202 is connected to an air inlet pipe 205. When the two second electric push rods 201 are started, the second mounting housing 203 and the first mounting housing 202 move in opposite directions. The air inlet 204 is connected to the air inlet pipe 205. The extrusion rod 116 is fixedly connected to a piston plate 206. The piston plate 206 is in contact with the inner wall of the adjacent fixed sleeve 102. The upper side of the support frame 101 is fixedly connected to an air pump 207 connected to the air inlet pipe 205.

[0038] When a loading test is required on the curved surface of the propellant column, the operator activates two symmetrically distributed second electric actuators 201. The telescopic ends of the two second electric actuators 201 respectively drive the first mounting shell 202 and the second mounting shell 203 to move in opposite directions. The first mounting shell 202 presses against the baffle of the extrusion plate 119, causing the extrusion plate 119 to move to the left and contact the two wedge blocks 118. The two fixing clamps 113 move away from each other, and the second mounting shell 203 enters into the first mounting shell 202 and fits tightly against it. When the air inlet 204 is connected to the air inlet pipe 205, the second electric actuators 201 stop working, and the X-ray radiator 114 can scan and image the propellant column through the first mounting shell 202 and the second mounting shell 203. The operator then activates the air pump 207, which pumps gas into the first mounting shell 202 and the second mounting shell 203 through the air inlet pipe 205, increasing the air pressure inside the first mounting shell 202 and the second mounting shell 203. The curved surface of the propellant column is subjected to gas pressure. Since the gas pressure in the gas storage tank 108 is greater than the gas pressure in the first mounting shell 202 and the second mounting shell 203, the first protective sleeve 106 and the second protective sleeve 107 can still approach and fit together to protect the parts. When the gas pressure reaches the set value, the operator turns off the air pump 207. When the loading time of the propellant column reaches the time set by the operator, the operator turns on the air pump 207 and the second electric push rod 201. The air pump 207 extracts the gas from the first mounting shell 202 and the second mounting shell 203. The telescopic end of the second electric push rod 201 drives the first mounting shell 202 and the second mounting shell 203 to move away from each other. At this time, under the action of the tension spring on the guide rod 111, the two fixing clamps 113 clamp the propellant column. The operator turns on the electric roller 117, so that the propellant column rotates and is scanned by the X-ray radiator 114. The X-ray radiator 114 scans and images the propellant column.

[0039] While performing loading tests on the curved surface of the propellant column, the operator can also apply pressure to both ends of the propellant column or stretch the propellant column, applying different loading methods simultaneously. Regardless of whether the propellant column is pressured or stretched, the piston plate 206 will ensure that the first mounting shell 202 and the second mounting shell 203 are in a sealed environment to avoid changes in internal air pressure, which could cause instability in the pressure on the propellant column.

[0040] Finally, it should be noted that the above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A loading test apparatus suitable for observing the microstructure of high-energy propellant materials, characterized in that it includes: There is a support frame (101), and the support frame (101) is slidably connected to symmetrically distributed fixed sleeves (102). Each symmetrically distributed fixed sleeve (102) is fixedly connected to a movable rod (103). The movable rod (103) is slidably connected to the support frame (101). The support frame (101) is equipped with a motor (104). The output shaft of the motor (104) is fixedly connected to a threaded rod (105). The threaded rod (105) is provided with symmetrically distributed threaded parts. The movable rod (103) is threadedly connected to the adjacent threaded parts. The symmetrically distributed fixed sleeves (102) are respectively slidably connected to a first protective sleeve (106) and a second protective sleeve (107). The fixed sleeves (102) are equipped with a gas storage tank (108). The gas storage tank (108) is filled with compressed gas. The gas storage tank (108) is slidably connected to a piston rod (109). The first protective sleeve (106) is slidably connected to the piston rod (109). 106) and the second protective sleeve (107) are respectively fixed to the adjacent piston rod (109). The fixed sleeve (102) is provided with a fast melting block (110). The first protective sleeve (106) and the second protective sleeve (107) are respectively attached to the adjacent fast melting block (110). The support frame (101) is slidably connected with symmetrically distributed guide rods (111). A tension spring is fixed between the guide rod (111) and the support frame (101). The guide rod (111) is fixed with a fixing rod (112). The fixing rod (112) is fixed with a fixing clamp (113). The support frame (101) is equipped with an X-ray radiator (114). The fixed sleeve (102) is fixed with a first electric push rod (115). The telescopic end of the first electric push rod (115) is fixed with a compression rod (116). The fixed sleeve (102) is provided with a stretching assembly for stretching the drug column. The tensioning assembly includes a mounting ring (301) which is slidably connected to an adjacent fixed sleeve (102). A spring is fixed between the mounting ring (301) and an adjacent extrusion rod (116). The mounting ring (301) is slidably connected to a first limiting block (302) in a circumferential array and a fixed block (303) in a circumferential array. A spring is fixed between the first limiting block (302) and the adjacent fixed block (303). A tension spring is fixed between the first limiting block (302) and the adjacent mounting ring (301). When the extrusion rod (116) contacts the drug cartridge, the spring between the first limiting block (302) and the adjacent fixing block (303) is in the normal state, and the spring between the extrusion rod (116) and the adjacent mounting ring (301) is in the compressed state. The mounting ring (301) is rotatably connected to a rotating sleeve (304), the extrusion rod (116) is fixedly connected to a slider (305), the rotating sleeve (304) is provided with a limiting groove (306) that cooperates with the adjacent slider (305) for limiting, and the rotating sleeve (304) is fixedly connected to a second limiting block (307) in a circumferential array.

2. The loading test device for observing the microstructure of high-energy propellant materials as described in claim 1, characterized in that, The fixing clamp (113) is equipped with evenly distributed electric rollers (117) for rotating the drug cartridge.

3. The loading test device for observing the microstructure of high-energy propellant materials as described in claim 1, characterized in that, The fixed rod (112) is fixedly connected to the wedge block (118), the support frame (101) is slidably connected to the extrusion plate (119), the extrusion plate (119) is fixedly connected to the support frame (101) with a tension spring, the extrusion plate (119) is fixedly connected to the symmetrically distributed baffles, and the first protective sleeve (106) cooperates with the adjacent baffle through the baffle plate.

4. The loading test device for observing the microstructure of high-energy propellant materials as described in claim 3, characterized in that, The support frame (101) is equipped with a blower (120) for cleaning impurities adhering to the surface of the medicine column.

5. The loading test device for observing the microstructure of high-energy propellant materials as described in claim 1, characterized in that, The outer diameter of the first protective sleeve (106) is equal to the inner diameter of the second protective sleeve (107), so that the first protective sleeve (106) and the second protective sleeve (107) can fit tightly together.

6. The loading test apparatus for observing the microstructure of high-energy propellant materials as described in claim 1, characterized in that, The fixed sleeve (102) is equipped with a second electric push rod (201). The support frame (101) is slidably connected with a first mounting shell (202) and a second mounting shell (203). The inner diameter of the first mounting shell (202) is equal to the outer diameter of the second mounting shell (203) so that the first mounting shell (202) and the second mounting shell (203) can fit tightly together. The first mounting shell (202) cooperates with the adjacent baffle. The first mounting shell (202) and the second mounting shell (203) are respectively fixed to the telescopic end of the adjacent second electric push rod (201). The second mounting shell (203) is provided with an air inlet (204). The first mounting shell (202) is connected to an air inlet pipe (205). The extrusion rod (116) is fixed to a piston plate (206). The support frame (101) is fixed to an air pump (207). The air pump (207) is connected to the air inlet pipe (205).

7. The loading test apparatus for observing the microstructure of high-energy propellant materials as described in claim 6, characterized in that, The second limiting block (307) cooperates with the adjacent first limiting block (302) to increase the pressure of the fixed block (303) on the drug column.

Images